Service Bulletin

File in Section: 06 - Engine

Bulletin No.: 09-06-04-026H

Date: November, 2014

INFORMATION

Subject: Identifying Non-GM (Aftermarket) Engine Calibrations for Gasoline Engines UsingTech 2® or GDS 2

Models: 2010-2015 GM Passenger Cars and Light Duty Trucks— Equipped With Any V8Gasoline Engine2012 Chevrolet Camaro— Equipped With V6 Engine— RPO LFX2013-2015 Buick LaCrosse, Enclave— Equipped With V6 Engine— RPO LFX or LLT2013-2014 Cadillac ATS, CTS Coupe, CTS Sedan, CTS Wagon, SRX, XTS, XTSProfessional Package— Equipped With V6 Engine— RPO LFX2015 Cadillac ATS Coupe, ATS Sedan, CTS Sedan , SRX, XTS, XTS ProfessionalPackage— Equipped With V6 Engine— RPO LFX2013 Chevrolet Impala PPV— Equipped With V6 Engine— RPO LFX2013-2015 Chevrolet Camaro, Caprice PPV, Equinox, Impala, Traverse— EquippedWith V6 Engine— RPO LFX or LLT2014-2015 Chevrolet Impala Limited (PPV and Fleet)— Equipped With V6 Engine—RPO LFX2015 Chevrolet Colorado— Equipped With V6 Engine— RPO LFX2013-2015 GMC Acadia, Terrain— Equipped With V6 Engine— RPO LFX or LLT2015 GMC Canyon— Equipped With V6 Engine— RPO LFX

Attention: Always refer to the GM Service Policy and Procedures Manual for the latest GM Policyand Procedures Information.

This bulletin is being revised to make the Subject and Attention statement more concise, addcertain Model Year 2013-2015 vehicles equipped with the V6 engine— RPO LFX or LLT, addModel Year 2015 vehicles equipped with any V8 engine, add a Notice before the Table ofContents and also update the information. Please discard Corporate Bulletin Number

09-06-04-026G.

Notice: For 2006-2013 vehicles equipped with the Duramax™ diesel engine, refer to the latest version ofCorporate Bulletin Number #08-06-04-006. For 2014-2015 vehicles equipped with the Duramax™ dieselengine, refer to the latest version of Corporate Bulletin Number #14-06-04-003.

Table of Contents• 1. Engine, Transmission, Transfer Case, Rear Axle Components and Catalytic Converter Failures Due to

Non-GM ECM Calibrations Being Installed• 2. Calibration Retrieval and Calibration Verification Procedure for Service Agents NOT REQUIRED to

Call PQC for Powertrain/Drivetrain Assembly Replacement Authorization• 3. Calibration Retrieval and Calibration Verification Procedure for Service Agents REQUIRED to Call

PQC for Powertrain/Drivetrain Assembly Replacement Authorization• 4. Retrieving Engine Calibration ID and Verification No. (Number) Information Using the Tech 2® - This

Action is Required for ALL Service Agents (Model Dependent)• 5. Tech 2® Displaying All Zeroes for the Verification Numbers on the Vehicle Information - Calibration ID

and Verification No. (Number/CVN) Screen• 6. Retrieving Calibration Information From Global A Vehicles Using GDS 2 - This Action is Required for

ALL Service Agents (Model Dependent)

• 7. Creating a .jpg or .jpeg File From a GDS 2 Calibration History Screen Shot Using Microsoft Paint• 8. Calibration Verification Procedure— For Service Agents NOT REQUIRED to Call PQC for Powertrain/

Drivetrain Assembly Replacement Authorization— Using the Tech 2® or GDS 28. A. Calibration Verification Procedure— Using the Tech 2®8. B. Calibration Verification Procedure— Using GDS 2

• 9. Calibration Verification Procedure— For Service Agents REQUIRED to Call PQC for Powertrain/Drivetrain Assembly Replacement Authorization— This Procedure MUST be Performed by theCalibrations Group

• 10. Procedure for ALL Service Agents for E-mailing .jpg or .jpeg Files to the Calibration Group at —TACCVN@gmexpert.com

• 11. Calibrations Group - New E-mail Address - TACCVN@gmexpert.com• 12. Warranty Information

1. Engine, Transmission, Transfer Case, Rear Axle Components and CatalyticConverter Failures Due to Non-GM ECM Calibrations Being InstalledNotice:• Be advised that GM REQUIRES retrieving the Calibration Information and performing the Calibration

Verification Procedure as outlined in this Bulletin, whenever diagnostics determine a hard part failuremay have occurred on internal engine parts and BEFORE disassembly, repair or replacement of anengine assembly under warranty.

• Be advised that GM strongly recommends retrieving the Calibration Information and performing theCalibration Verification Procedure as outlined in this Bulletin, whenever diagnostics determine a hardpart failure may have occurred on transmission, transfer case or rear axle components and beforedisassembly, repair or replacement of a transmission, transfer case or rear axle assembly underwarranty. It is also recommended that the ECM Calibration Verification Procedure be performedwhenever diagnostics determine that catalytic converter replacement is necessary.

• It is not a requirement to verify transmission control module calibrations on gasoline engineapplications.

General Motors is identifying an increasing number of engine, transmission and catalytic converter part failures thatare the result of non-GM ECM calibrations being installed.When alteration to the GM-released ECM calibration occurs, it subjects powertrain and driveline components suchas engine, transmission, transfer case, driveshaft and the rear axle to stresses that were not tested by GeneralMotors. It is because of these unknown stresses, and the potential to alter reliability, durability and emissionsperformance, that GM has adopted a policy that prevents any UNAUTHORIZED Service Agent WarrantyTransaction submissions to any remaining warranty coverage, to the powertrain and driveline components wheneverthe presence of a non-GM calibration is confirmed, even if the non-GM ECM calibration is subsequently removed.Warranty coverage is based on the equipment and ECM calibrations that were released on the vehicle at time ofsale, or subsequently updated by GM. That’s because GM testing and validation matches the calibration to a host ofcriteria that is essential to assure reliability, durability and emissions performance over the life of the warrantycoverage and beyond. Stresses resulting from calibrations that are different from those tested and released by GMcan damage and/or weaken components, leading to poor performance and/or shortened life.Additionally, non-GM issued ECM modifications often do not meet the same emissions performance standards asGM issued calibrations. Depending on state statutes, individuals who install ECM calibrations that put the vehicleoutside the parameters of emissions certification standards may be subject to fines and/or penalties.This bulletin outlines the Calibration Retrieval and Calibration Verification Procedures for ALL Service Agentsincluding Service Agents NOT Required to Call PQC for Powertrain/Drivetrain Assembly Replacement Authorizationand Service Agents Required to Call PQC for Powertrain/Drivetrain Assembly Replacement Authorization, using theTech 2® or GDS 2 to identify the presence of non-GM control module calibrations.If a non-GM calibration is found and verification has taken place through GM, the remaining powertrain and drivelinewarranty may be blocked and notated in Global Warranty Management (GWM) and the dealership will be notified.This block prevents any UNAUTHORIZED warranty claim submission.

2. Calibration Retrieval and Calibration Verification Procedure for Service AgentsNOT REQUIRED to Call PQC for Powertrain/Drivetrain Assembly ReplacementAuthorizationNotice:• The Service Agent Service Department Personnel is NOT REQUIRED TO E-MAIL TAC the digital

Calibration Verification photos from the Tech 2® screen or GDS 2 screen shot, UNLESS non-GMcalibrations are found.

• The Service Agent Service Department Personnel is REQUIRED TO RETAIN ALL of the relateddocumentation showing the Calibration Information was Retrieved and the Calibration VerificationProcedure was completed, in the Service Agent Vehicle History Service File.

1. Depending on the vehicle being serviced, the Service Department Personnel is required to complete one of thefollowing procedures, either Step 1.1 or Step 1.2 in order to ensure that there are not any non-GM ECMcalibrations present:1.1. Section 4. Retrieving Engine Calibration ID and Verification No. (Number) Information Using the

Tech 2®After retrieving the calibration information, Go to Step 2.OR

1.2. Section 6. Retrieving Calibration Information From Global A Vehicles Using GDS 2After retrieving the calibration information, Go to Step 2.

2. After retrieving the Calibration Information and performing Section: 8. Calibration Verification Procedure— For Service Agents NOT REQUIRED to Call PQC for Powertrain/Drivetrain Assembly ReplacementAuthorization— Using the Tech 2® or GDS 2 the Service Department Personnel is required to retain all ofthe related documentation showing the procedures were completed in the Service Agent Vehicle HistoryService File.

⇒ If the Calibration Verification Procedure determines that THERE ARE non-GM ECM calibrations present, theService Department Personnel MUST follow the procedure as instructed in: Section 10. Procedure for AllService Agents for E-mailing .jpg or .jpeg Files to the Calibration Group at —TACCVN@gmexpert.com

3. When returning an engine assembly a printed copy of the Tech 2® Vehicle Information - Engine Calibration IDand Verification No. (Number/CVN) screen or the GDS 2 Calibration History (Events) screen shot must beattached to the documentation being returned with the unit.

Notice: For additional information regarding: Service Agents NOT Required to Call PQC for Powertrain/Drivetrain Assembly Replacement Authorization, refer to the latest version of Corporate Bulletin#12-07-30-001 Information for Service Agents Not Required to Contact Product Quality Center (PQC) forCNG, LPG or Gasoline Engine, Transmission and/or Transfer Case Replacement Authorization

3. Calibration Retrieval and Calibration Verification Procedure for Service AgentsREQUIRED to Call PQC for Powertrain/Drivetrain Assembly ReplacementAuthorizationNotice:• The Service Agent Service Department Personnel is REQUIRED TO E-MAIL TAC the digital Calibration

Verification photos from the Tech 2® screen or GDS 2 screen shot in .jpg or .jpeg format only, to thefollowing e-mail address: TACCVN@gmexpert.com

• The Service Agent Service Department Personnel is REQUIRED TO RETAIN ALL of the relateddocumentation showing the Calibration Information was Retrieved and the Calibration VerificationProcedure was performed by the Calibrations Group which is their e-mail response, in the Service AgentVehicle History Service File.

1. Depending on the vehicle being serviced, the Service Department Personnel is required to complete one of thefollowing procedures, either Step 1.1 or Step 1.2 in order to ensure that there are not any non-GM ECMcalibrations present:1.1. Section 4. Retrieving Engine Calibration ID and Verification No. (Number) Information Using the

Tech 2®OR

1.2. Section 6. Retrieving Calibration Information From Global A Vehicles Using GDS 22. After retrieving the Calibration Information and referring to Section: 9. Calibration Verification Procedure

— For Service Agents Required to Call PQC for Powertrain/Drivetrain Assembly ReplacementAuthorization— MUST be Performed by the Calibrations Group , follow the procedure in Section 10.Procedure for All Service Agents for E-mailing .jpg or .jpeg Files to the Calibration Group at —TACCVN@gmexpert.com

3. The Service Department Personnel is required to retain all of the related documentation showing theprocedures were completed in the Service Agent Vehicle History Service File.

4. When returning an engine assembly a printed copy of the Tech 2® Vehicle Information - Engine Calibration IDand Verification No. (Number/CVN) screen OR the GDS 2 Calibration History (Events) screen shot must beattached to the documentation being returned with the unit.

Notice: For additional information regarding: Service Agents Required to Call PQC for Powertrain/Drivetrain Assembly Replacement Authorization, refer to the latest version of Corporate Bulletin#02-07-30-029 Product Quality Center (PQC) Assembly Replacement Process

4. Retrieving Engine Calibration ID and Verification No. (Number) Information Usingthe Tech 2® - This Action is Required for ALL Service Agents (Model Dependent)Notice: This information applies to vehicles that are Tech 2® compatible and is typical of the procedure thatwill be used.1. Connect the Tech 2® to the vehicle.2. Go to: Diagnostics and build the vehicle.3. Select: Powertrain.4. Select: Engine.5. Select: Engine Control Module or PCM.6. Select: Module ID Information or I/M Information System if the Module ID Information selection is not

available.7. If: "I/M information System" was selected, it may be necessary to select "Vehicle Information" in order to

display the calibration information.

⇒ If the CVN information is displayed as “N/A”, it will be necessary to contact the TCSC at 1-800-828-6860 forEnglish or 1-800-503-3222 for French to obtain the CVN information.

⇒ If the CVN Information is displayed as all zeroes, refer to Section: 5. Tech 2® Displaying All Zeroes for theVerification Numbers on the Vehicle Information - Calibration ID and Verification No. (Number/CVN)Screen

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Notice:• Two examples of the Tech 2® Vehicle Information - (Engine) Calibration ID and Verification No.

screens are shown.• The Tech 2® Vehicle Information - Calibration ID and Verification No. screen will differ slightly

depending on vehicle and model year.8. Take a CLEAR digital picture(s) of the Tech 2® Vehicle Information screen showing the entire VIN, (Engine)

Calibration ID and Verification No. (Number/CVN) and save it in .jpg format.

Notice: It is recommended that an electronic copy of the Tech 2® screen photograph(s) also be saved.9. Retain the printout information and the Tech 2® screen photograph(s) with the repair order.

5. Tech 2® Displaying All Zeroes for the Verification Numbers on the VehicleInformation - Calibration ID and Verification No. (Number/CVN) Screen

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If the Tech 2® that is being used displays all zeroes for the Verification Numbers as shown, then perform thefollowing steps:1. Update the Tech 2® with the latest software from TIS2WEB.2. Turn OFF the ignition for 90 seconds.3. Connect the Tech 2® to the vehicle.4. Turn ON the ignition, and build the vehicle. Observe the Tech 2® Vehicle Information - Calibration ID and

Verification No. (Number/CVN) screen for proper operation.

⇒ If the Tech 2® screen still does not display properly, then turn OFF the ignition for 90 seconds again. Turn ONthe ignition and observe the same screen for proper operation.

6. Retrieving Calibration Information From Global A Vehicles Using GDS 2 - ThisAction is Required for ALL Service Agents (Model Dependent)Notice: This information applies to Global A - GDS 2 compatible vehicles and is typical of the procedurethat will be used.1. Turn OFF the ignition.2. Connect the MDI to the Data Link Connector (DLC) of the vehicle.

Notice: Use the USB port to make the following MDI connection:3. Connect the MDI to a PC or laptop that has been downloaded with the GDS 2 application from TIS2WEB.

Notice: At least one Diagnostic Package must be installed on the PC to perform diagnostics. If GDS 2 wasjust installed, select: Add New Diagnostic Package and then select a: Diagnostic Package to download.4. Select: GDS 2 icon on the PC.5. Select: Diagnostics icon.6. Select: serial number of the MDI being used.7. Select: Enter icon.

8. Select: Module Diagnostics.9. Select: Engine Control Module.

Notice: Due to the model selected, vehicle build, software and RPO variations, GDS 2 may ask for additionalinformation in Step 10.10. Select: Engine ID, if prompted.11. Select: ID Information.12. The Diagnostics page will appear.

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Notice: This is a typical view of a GDS 2 Calibration History Events Screen. GDS 2 is capable of displayingup to 10 Calibration History Events.

Select: Calibration History from the drop down menu in order to display the following items on the screen,including the VIN:• Calibration History Buffer• Number of Calibration History Events Stored• Calibration Part Number History• Calibration Verification Number History

14. Select: Save Report.15. Select: Print.

Notice: It is recommended that an electronic copy of the GDS 2 Calibration History also be saved. Refer toSection: 7. Creating a .jpg or .jpeg File From a GDS 2 Calibration History Screen Shot Using Microsoft Paint16. Retain a copy of the printed screen shot with the repair order.

7. Creating a .jpg or .jpeg File From a GDS 2 Calibration History Screen Shot UsingMicrosoft Paint1. Select: Start icon.2. Select: All Programs.3. Select: Accessories.4. Select: Paint.

5. Navigate to: Calibration History .6. Press the: Print Scrn button.7. Open: Microsoft Paint.8. Select: Paste.9. Select: Save As.

10. Select: Desktop.11. Select: File name. Name the file. As an example use the VIN.12. Select: Save as type, using the drop down menu.13. Select: JPEG

8. Calibration Verification Procedure— For Service Agents NOT REQUIRED to CallPQC for Powertrain/Drivetrain Assembly Replacement Authorization— Using theTech 2® or GDS 21. Go to: TIS2WEB Home Page.

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2. Select: Calibration Information (SPS Info).

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3. Enter the: VIN.4. Select: Get Cal ID.

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5. Select: ECM Engine Control Module— Programming from the Controller dropdown menu and select: Next.

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6. Select: Complete History at the top left or bottom left of the page to access the GM Vehicle CalibrationInformation screen, which displays all of the GM Approved Calibrations and CVNs (Calibration VerificationNumbers).

⇒ If the vehicle being serviced requires using the Tech 2® , Go to subsection: 8. A. Calibration VerificationProcedure— Using the Tech 2®

⇒ If the vehicle being serviced requires using GDS 2, Go to subsection: 8. B. Calibration VerificationProcedure— Using GDS 2

8. A. Calibration Verification Procedure — Using the Tech 2®

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Compare each: Calibration ID Part Number and Verification No. (Number/CVN) from your Tech 2® photo to thecorresponding Calibration ID Part Number and Verification No. (Number/CVN) listed in the TIS2WEB GMVehicle Calibration Information screen of TIS2WEB to ensure that they are ALL an EXACT MATCH.

⇒ If ANY of the Calibration ID Part Number and Verification No. (Number/CVN) when COMPARED to theCalibration ID Part Number and Verification No. (Number/CVN) listed in the TIS2WEB GM Vehicle CalibrationInformation screen, DO NOT MATCH, then non-GM calibrations may be present and you should follow theprocedure in Section: 10. Procedure for All Service Agents for E-mailing .jpg or JPEG Files to theCalibration Group at— TACCVN@gmexpert.com in order to e-mail your findings to the Calibration Group,who will then document your information with the appropriate Brand Quality Manager in the Brand Quality Team.

8. B. Calibration Verification Procedure — Using GDS 2

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Compare each: Engine Calibration Part Number History parameter and Calibration Verification NumberHistory parameter from the GDS 2 Calibration History screen to the Calibration Part Number and CalibrationVerification Number (CVN) listed in the GM Vehicle Calibration Information screen of TIS2WEB to ensure thatthey are ALL an EXACT MATCH.

⇒ If ANY Engine Calibration Part Number History parameter and Calibration Verification Number History parameterwhen COMPARED to the Engine Calibration Part Number History parameter and Calibration Verification NumberHistory listed in the TIS2WEB GM Vehicle Calibration Information screen, DO NOT MATCH, then non-GMcalibrations may be present and you should follow the procedure in Section: 10. procedure for All ServiceAgents for E-mailing .jpg or JPEG Files to the Calibration Group at — TACCVN@gmexpert.com in order toe-mail your findings to the Calibration Group, who will then document your information with the appropriateBrand Quality Manager in the Brand Quality Team.

9. Calibration Verification Procedure— For Service Agents REQUIRED to Call PQCfor Powertrain/Drivetrain Assembly Replacement Authorization— This ProcedureMUST be Performed by the Calibrations GroupNotice: For Service Agents Required to Call PQC for Powertrain/Drivetrain Assembly ReplacementAuthorization, the Calibration Verification Procedure MUST be Performed by the Calibrations Group1. Assemble the Calibration Information that was retrieved when you performed Section: 4. Retrieving Engine

Calibration ID and Verification No. (Number) Information Using the Tech 2® - This Action is Required forALL Service Agents (Model Dependent)OR

2. Assemble the Calibration Information that was retrieved when you performed Section: 6. RetrievingCalibration Information From Global A Vehicles Using GDS 2 - This Action is Required for ALL ServiceAgents (Model Dependent)

3. Go to Section: 10. Procedure for ALL Service Agents for E-mailing .jpg or JPEG Files to the CalibrationGroup at— TACCVN@gmexpert.com .

10. Procedure for ALL Service Agents for E-mailing .jpg or .jpeg Files to theCalibration Group at— TACCVN@gmexpert.comNotice:1. ALL screen shots MUST be sent as a .jpg or .jpeg file. Keep all photos in ONE e-mail.2. DO NOT e-mail photos from the GDS 2 in the automatic format of a .png file. Your e-mail will arrive at the

Calibrations Group with the .png file(s) having been stripped by the security firewall.1. Create an e-mail to be sent to: TACCVN@gmexpert.com2. Attach the Tech 2® digital .jpg or .jpeg photos or the GDS 2 .jpg or .jpeg files to the e-mail. Keep ALL photos in

one e-mail.3. In the Subject Line of the e-mail include the following:

3.1. The phrase: “V6 Cal” or “V8 Cal”.3.2. The complete: VIN.3.3. The Service Agent BAC.

4. In the Body of the e-mail include the following:4.1. The complete: VIN.4.2. The Mileage.4.3. The Service Agent BAC.4.4. The Repair Order (R.O.) or Job Card number.4.5. The Customer Complaint.4.6. The Cause of the Condition.

Notice: Requests that are sent to the Calibrations Group are handled in the order in which they werereceived.5. The Service Agent will receive an e-mail reply after the calibrations have been validated. The e-mail reply will

advise the Service Agent if the calibrations are OEM.

⇒ If non-GM ECM calibrations are determined to be present, the Calibrations Group will forward the case to theappropriate Brand Quality Manager for review. The Brand Quality Manager will then determine whether thewarranty will be blocked and will respond to all parties concerned.

6. You may call the PQC two hours after submitting the e-mail to the Calibrations Group (or after the results havebeen received by e-mail) for authorization to replace the assembly. This time allows the Calibrations Group toreceive, review, verify the calibrations and set up a case for the request. The Calibrations Group will also updatethe PQC or TAC case with the results of the Calibration Verification Request.

Be prepared to provide all the usual documentation that is normally required when requesting an assemblyauthorization from the PQC.

Notice: DO NOT contact GM Technical Assistance (TAC) to discuss warranty concerns on the non-GMcalibrations. ALL questions and concerns about warranty should be directed to the District ManagerAftersales (DMA), in Canada the DM-CCSP (District Manager-Customer Care and Service Process).

11. Calibrations Group - New E-mail Address - TACCVN@gmexpert.comThe Calibrations Group has a new e-mail address to be used when mailing the digital .jpg or .jpeg photographs of theEngine Calibration ID and Verification No. (Number) Information taken from the Tech 2® or .jpg or .jpeg photographsfrom the GDS 2 Calibration History screen shot.E-mail all .jpg or .jpeg files to this address: TACCVN@gmexpert.com

12. Warranty Information• The Dealership Service Management must be involved in any situation that would justify the use of labor

operation 0600014.• Notify the District Manager Aftersales (DMA), in Canada the DM-CCSP (District Manager-Customer Care and

Service Process) of the situation.• All claims will have to be routed to the Warranty Support Center (WSC) for approval.• Please refer to Corporate Bulletin Number 09-00-89-016, Labor Operation 0600014 - Suspected Tampering or

Vehicle Modifications for important information.For vehicles repaired under warranty, use:

LaborOperation Description

LaborTime

0600014 Suspected Tampering orVehicle Modifications 0.2 hr